Tom Lane a191a169d6 Change the planner-to-executor API so that the planner tells the executor ... which comparison operators to use for plan nodes involving tuple comparison (Agg, Group, Unique, SetOp). Formerly the executor looked up the default equality operator for the datatype, which was really pretty shaky, since it's possible that the data being fed to the node is sorted according to some nondefault operator class that could have an incompatible idea of equality. The planner knows what it has sorted by and therefore can provide the right equality operator to use. Also, this change moves a couple of catalog lookups out of the executor and into the planner, which should help startup time for pre-planned queries by some small amount. Modify the planner to remove some other cavalier assumptions about always being able to use the default operators. Also add "nulls first/last" info to the Plan node for a mergejoin --- neither the executor nor the planner can cope yet, but at least the API is in place.		2007-01-10 18:06:05 +00:00
..
adt	Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST	2007-01-09 02:14:16 +00:00
cache	Change the planner-to-executor API so that the planner tells the executor	2007-01-10 18:06:05 +00:00
error	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
fmgr	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
hash	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
init	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
mb	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
misc	Have log_temp_files be in kilobytes, remove trace call.	2007-01-09 22:16:46 +00:00
mmgr	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
resowner	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
sort	Change the planner-to-executor API so that the planner tells the executor	2007-01-10 18:06:05 +00:00
time	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
.cvsignore
Gen_fmgrtab.sh	Update CVS HEAD for 2007 copyright. Back branches are typically not	2007-01-05 22:20:05 +00:00
Makefile	Fix some makefiles that fail to yield good results from 'make -qp'.	2006-07-15 03:33:14 +00:00
probes.d	DTrace support, with a small initial set of probes	2006-07-24 16:32:45 +00:00